Select the wrong statement.

(2) is the wrong statement.
Pili and fimbriae of bacteria are adhering structures. Pili help in attaching to other bacterium during conjugation. Fimbriae help in attaching to surface of rocks and host tissues.
(1) Bacterial cell wall is made of peptidoglycan or mureins.
(3) Cyanobacteria or blue-green algae do not have any flagellated cells. They have thick gelatinous sheath around their cells or fi laments or colonies.
(4) The Mycoplasma are organisms that completely lack a cell wall.